TROUBLE SHOOTING
ERROR
#
PROBLEM ACTION
/
SOLUTION
0
No connection between main PCB and display PCB
Check flat connector inside the unit
1
Choosing SOFT joint and working on a HARD joint:
the screwdriver will stop
- Switch the unit off and on again after 5
seconds and check the joints
2
Choosing HARD joint and working on a SOFT joint:
the screwdriver will stop
- Switch the unit off and on again after 5
seconds and check the joints
5
Bus undervoltage (it happens when the Vbus
to the motor remains below 25V for more than 3
seconds)
- Make sure that 110/230 (depending on
Country) VAC input is supplied
6
Overload on bridge H (it happens when current on
mosfets of bridge H > 10 A for more than 600 ms)
- Reduce cycle rate
- Avoid motor stalling
7
Motor not detected (it happens when the motor
connection is missing)
- Check cable and connection between
screwdriver and controller
8
Overload on bridge H (it happens when current on
mosfets of bridge H > 14,5 A for more than 10 ms)
- Reduce cycle rate
- Avoid motor stalling
- Unscrewing too heavy (> tool torque
range)
NB. TO RESET ERRORS, TURN OFF THEN SWITCH ON THE UNIT. RESET OF ERRORS #6
AND #8 COMES AUTOMATICALLY AFTER THE PROBLEM END.
IF THE PROBLEM PERSISTS, PLEASE CONTACT YOUR NEAREST KOLVER DEALER.
EDU1AE power supply and control unit is a maintenance free unit. Should you need any assistance please
call the nearest Kolver dealer in your Country or contact directly Kolver at
kolver@kolver.it
or call
+39 0445 371068. In the US call 978-692-2468.
